CVE-2025-11602 Untargeted information leak in Bolt protocol handshake
An attacker can obtain one byte of information from previous connections during the Bolt protocol handshake in Neo4j databases.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-11602?
CVE-2025-11602 is a medium-severity vulnerability in neo4j Community Edition, published on 31 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Potential information leak in bolt protocol handshake in Neo4j Enterprise and Community editions allows attacker to obtain one byte of information from previous connections. The attacker has no control over the information leaked in server responses.
Weakness: CWE-226
Which versions are affected by CVE-2025-11602?
How do I fix CVE-2025-11602?
No fix has been published for CVE-2025-11602 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-11602 being exploited?
There is no known exploitation of CVE-2025-11602 in the wild and no public exploit code.
Sources
Also known as GHSA-jwg7-fm78-3f3q.